Lubricator



Aug. 3f 1926.

A. s KIDD LUBRICATOR Filed March 5, 1926 Lui?,

I hoz ge/gigi Patented Aug. 3, 1926.

LSMJW UNITED s'rArss rrsri'r tries.

.ALVIN SIMEON KDD, 0F MADISON, WISCONSIN, ASSXGNOR TO MADSQN-II9 Clflt- PORATION, OF MADISON, WSCONSIN, A CORPORATION OF VISCONSN.

Lnnjaroeroa.

Application led March 5, 1926. Serial No. 82,519.

rlhis invention pertains to lubricators and more particularly to that type wherein oil is periodically forced to a plurality of points to be lubricated.

The. invention, in a` sense, is an improve ment upon the construction set 'forth and claimed` in Letters Patent ot the United States Number 1,532,620, granted under date of April 7th, 199.5, to Thomas E. Coleman,

T he present case. as in the structure shown in the patent, involves the use of a distributor mounted for movement in a. casting in which various ports or passages are formed. which passages are in turn interconnected with, pipes or conduits leading to the various points or elements to be lubricated.

It has been Jfound in actual. practice that where the casting in which the distributor elementis mounted for rotation is formed as a solid or unitary structure, that it is liable to be warped in the securing of the saine to the supporting element, or is liable to be warped when the threaded nipples are screwed to place .in the body of the casting. This warping is due toV the screwing of the tapered nipples into the openings. Where the nipples pass through the supporting ele ment 'tor the casting, the distortion is in a measure due to the clamping action between the parts.

The present invention has for its main object tofprovide a simple-means or remedy to prevent such warping or twisting whereby binding of the distributor element is avoided.

The invention is illustrated in the annexed drawings which are merely typical of one embediinent ot the inventive concept and in which Figure l is sectional elevation taken on the line l-l ot Figure 2 of so much ot a torce i'eed lubricator as is necessary to an understanding of the invention,

Figure 2 is a transverse sectional view taken on the line H-H of Figure l, and

`ffure 3 is a top plan of the casting in which the distributor element is mounted, the casting in this` instance being' supported by a suitable bracket.

l have not deemed it necessary. in the present case, to show the force feed pumps which eii'ect a feed ot the oil to the distributor element as the same may be of any type for instance. that shown in the patent above mentioned.`

in Figs. l and 2. 1 denotes a portion of the reservoir, and 2 the cover thereof. Secured to the under tace of the cover is a block or casting denoted `generally by 3 having longitudinal bore formed therein and in which bore is n'iounted a distributor element t. 5 and 6 denote the inlet pipes leading' from the i'orce pumps, not shown. The distributor fl is provided with annular grooves 7 and 8 which are in constant coin-` munication with the teed pipes 5 and 6 and said grooves have opening` into them incl ined opeiiings 9 and l() formed in the body of the distributor. These openings are designed to be brought into register with ducts or passages termed in the body of the block or Vcasting' 3 which passages are denoted generally by the reference numeral ll. These passages terminate in openings as 1Q extending inwardly from the upper face of the block or casting 3 and said openings are threaded for the reception of threaded elements 13 attached to, or forming a part of, the conduits or pipes 14 which lead oil to the vario-us points to be lubricated. The threaded members or nipples 13 are screwed into the openings l2 and clamping nuts l5 are turned down upon the elements 13 drawing the block tightly against the under face ot' the cover2.

As above noted,` the drawing up ot the block against the cover andthe screwing in of the nipples 13 which have a slight taper to effect a tight joint, tends to distort the bloeit and` as a consequence to distort the cylindrical bore or opening in which the rotation, distributor element lis mounted and with which it must make close and accurate Contact. To prevent such distortion. I provide. inthe upper tace ot the blorlt, aseries of cross grooves or `channels 16 and i7. These grooves. as will be seen ii-pon reter-V ence to Figure 3. intersect each other and are preferably spaced een etant between the series of openings l2 of whichrsircteen are shown in Figure 3. This arrangement forms, in eect, a series of yielding projections or protuberances which are internally threaded to receive the threaded members or nipples 13. It has been found` in actual practice. that this arrangement aords sufficient elasticity to the structure to prevent any `distortion thereof or, at least, any distortion in the body thereof which would produce a clamping or binding action upon the distributor element.

It is conceivable that, in the broader aspect of the case, the block formed in the manner above specified, might be secured to the cover by bolts or threaded connections other than the threaded nipples 13.

In Figure 3 the block or casting in which the distributor is mounted is the saine as in the other figures of the drawings but in this instance instead of supporting the cast ing by the overlying plate or cover, I e1n plo a bracket 2O to which the casting or bo y member 3 is attached in any suitable manner as by screws 2l. Except for this the bracket construction is the same as in the other figures, the nipples however, being omitted from the showing.

IVhile I have shown the casting or body element 3 formed with a series of grooves extending` between each of the tappeti openings l2, the presence of all of them is not absolutely essential, for I find that it is sometimes possible to remedy a binding of the distributor element by the presence of a lesser number of grooves.

Furthermore, it is to be understood that while I have specifically described the in- `vention in connection with a pump contained in a reservoir, this is merely by way of illustration and the term plate as employed in some of the claims is to be given a broad interpretation, for as will be read-.

ily appreciated, the invention is applicable to other types of lubricators than that described.

The distributor element may be actuated in any manner. Furthermore, while I have described two annular grooves 7 and 8 and the respective ports or passages leading therefrom, it is to be understood that in so far as the generic invention is concerned, a single groove might be employed and further that means other than the groove and port construction may be utilized t effect the distribution of the oil. f

IVhat is claimed is:

l. In a lubricator, the combination of a body member provided on one face with a series of grooves producing a plurality of members laterally separated from each other; a distributor member mounted for movement in said body member and serv ing to control the distribution of lubricant through a series of passages terminating respectively in openings formed in the body member intermediate the grooves; a plate; and means extending through the plate and into the openings for clamping the plate to the body member.

2. In a lubricator, the combination of a reservoir; a closure therefor, said closure having a plurality of openings formed therein; a casting designed to be secured to the under face of the closure, that face of the casting which lies next to the clo sure being provided with a series of grooves producing a plurality of members laterally separated from each other; a series of nipples extending through the openings in the closure and threaded into the pas sages formed in the adjacent face of the body; and a distributor mounted in a bearing formed in the body and serving to control the distribution of the lubricant to the various passages.

3. In a lubricator, the combination of a reservoir; a closure therefor, said closure having a plurality of openings formed therein; i body member having a plurality of oil passages extending therethrough, one of said passages at least, terminating in line with each of the openings aforesaid, and said body portion being likewise provided with a series of cross cuts or channels in that face which lies next adjacent to the closure; a distributor element mounted for rotation in said body member; and means extending through the closure and threaded into the openings in the body for clamping the latter to the body.

Li. In a lubricator, the coml'iination of a body member provided upon one face with a series of threaded openings; at least one groove extending between said openings producing a plurality of members laterally separated from each other; a distributor member mounted for movement in said body and serving to control the distribution of lubricant through a series of passages terminating in said threaded openings; a plate; and means extendingl through the plate and screwed into the threaded openings for clamping the plate to the body member.

5. In a lubricator the combination of av body member provided upon one face with a series of threaded openings; at least one groove extending between said openings producing a plurality of members laterally separated from each other; a distributor member mounted for movement in said body and serving to control the distribution of lubricant through a series of passages terminating in said threaded openings; and threaded nipples screwed into the threaded openings formed in the body member, said nipples serving to form connections leading to the parts to be lubricated.

In testimony whereof I have signed my name to this specification.

ALVIN SIMEON KIDD. 

